CN109343278A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN109343278A CN109343278A CN201811550498.3A CN201811550498A CN109343278A CN 109343278 A CN109343278 A CN 109343278A CN 201811550498 A CN201811550498 A CN 201811550498A CN 109343278 A CN109343278 A CN 109343278A
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- Prior art keywords
- backlight module
- luminous zone
- light
- luminescence unit
- fluorescence coating
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a kind of backlight module and display devices, comprising: the quantum dot film of light source assembly and the light emission side positioned at light source assembly；Backlight module has luminous zone and the non-light-emitting area around luminous zone, and luminous zone includes the first luminous zone and the second luminous zone around the first luminous zone；Light source assembly includes substrate, multiple luminescence units on substrate, the fluorescence coating positioned at the encapsulated layer of the first luminous zone and positioned at the second luminous zone, encapsulated layer covering is located at the luminescence unit of the first luminous zone, and fluorescence coating covering is located at the luminescence unit of the second luminous zone.The phenomenon that backlight module neighboring area is turned blue in the prior art is improved, the display effect for improving display device is conducive to.
Description
Technical field
The present invention relates to field of display technology, more particularly, to a kind of backlight module and display device.
Background technique
The backlight module of current existing liquid crystal display is divided into down straight aphototropism mode set by the difference of backlight and side enters
Formula backlight module two major classes.Down straight aphototropism mode set have it is good go out light visual angle, high usage, simple structure, low in cost
Etc. advantages.In a kind of down straight aphototropism mode set that the prior art provides, blue-ray LED sending blue light is converted to by quantum dot film
White light, the ratio that display color can be accounted for NTSC color gamut are promoted from 75% to 100%, bring better vision to imitate to consumer
Fruit, therefore blue-ray LED+quantum dot film technology is increasingly becoming industrial trend.
But blue-ray LED+quantum dot film technology is mainly used in middle large scale, such as TV and Monitor frame at present
In wider liquid crystal display product, this is because quantum dot film causes edge quantum dot to be directly exposed in display after dicing
And contacted with moisture and oxygen, make the edge of quantum dot film that can generate a failure area, quantum point failure in area of failing, from
And feux rouges and green light can not be generated in area of failing, and blue light is directly penetrated from failure area, therefore, the backlight that the prior art provides
There are the regions of turning blue of one fixed width on mould group periphery, and in Wide frame product, the region that surrounding is turned blue can pass through backlight module
And its overall construction design of the display device at place, it is hidden in other than visible area.
In the small-size product of narrow frame, the region of turning blue for the backlight module that the prior art provides can not be set by structure
Meter is completely hidden in other than visible area, and leading to the surrounding of backlight module and the display device where it, there are one fixed widthes
Region of turning blue, very influence display effect.
Therefore, how to improve the phenomenon that narrow frame liquid crystal display product neighboring area is turned blue as urgently to be resolved at this stage
Technical problem.
Summary of the invention
In view of this, the present invention provides a kind of backlight modules, comprising: light source assembly and the light emission side positioned at light source assembly
Quantum dot film；Backlight module has luminous zone and the non-light-emitting area around luminous zone, and luminous zone includes the first luminous zone and encloses
Around the second luminous zone of the first luminous zone；Light source assembly includes substrate, multiple luminescence units on substrate, is located at the first hair
The encapsulated layer in light area and fluorescence coating positioned at the second luminous zone, encapsulated layer covering are located at the luminescence unit of the first luminous zone, fluorescence
Layer covering is located at the luminescence unit of the second luminous zone.
The present invention also provides a kind of display devices, including backlight module and the display surface being oppositely arranged with backlight module
Plate, wherein backlight module is backlight module provided by the invention.
Compared with prior art, backlight module provided by the invention and display device at least realize following beneficial effect
Fruit:
Backlight module includes light source assembly and quantum dot film, and light source assembly includes multiple luminescence units, is located at first and shines
The light that luminescence unit issues in area projects after encapsulated layer and quantum dot film from the first luminous zone, sends out in the first luminous zone
The light that light unit issues is converted into white light by the processing of quantum dot film.The light warp that luminescence unit issues in the second luminous zone
It is projected after crossing fluorescence coating and quantum dot film from the second luminous zone, fluorescence coating is to the light for being located at luminescence unit sending in the second luminous zone
It carries out processing and is converted into white light, when the part quantum dot film for being located at the second luminous zone is contacted with moisture and oxygen and can not will shine
When unit sending light is converted, so that the light that the second luminous zone issues in backlight module is white light, so as to improve existing skill
The phenomenon that backlight module neighboring area is turned blue in art is conducive to the display effect for improving display device.
Certainly, implementing any of the products of the present invention specific needs while need not reach all the above technical effect.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is a kind of planar structure schematic diagram of backlight module provided by the invention；
Fig. 2 is backlight module in Fig. 1 along the schematic diagram of the section structure of A-A '；
Fig. 3 is the schematic diagram of the section structure of another backlight module provided by the invention；
Fig. 4 is the schematic diagram of the section structure of another backlight module provided by the invention；
Fig. 5 a is the schematic diagram of the section structure of another backlight module provided by the invention；
Fig. 5 b is the schematic diagram of the section structure of another backlight module provided by the invention；
Fig. 6 is the schematic diagram of the section structure of another backlight module provided by the invention；
Fig. 7 is a kind of planar structure schematic diagram of display device provided by the invention；
Fig. 8 be in Fig. 7 display device along the schematic diagram of the section structure of B-B '；
Fig. 9 is the schematic diagram of the section structure of another display device provided by the invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 1 is a kind of planar structure schematic diagram of backlight module provided by the invention, and Fig. 2 is backlight module in Fig. 1 along A-
The schematic diagram of the section structure of A ', with reference to Fig. 1 and Fig. 2, the present embodiment provides a kind of backlight modules, comprising: light source assembly 10 and position
In the quantum dot film 20 of the light emission side of light source assembly 10；
Backlight module has luminous zone AA and the non-light-emitting area NA around luminous zone AA, luminous zone AA include the first luminous zone
AA1 and the second luminous zone AA2 around the first luminous zone AA1；
Light source assembly 10 includes substrate 11, multiple luminescence units 12 on substrate 11, positioned at the first luminous zone AA1's
Encapsulated layer 13 and fluorescence coating 14 positioned at the second luminous zone, the covering of encapsulated layer 13 are located at the luminescence unit of the first luminous zone AA1
12, the covering of fluorescence coating 14 is located at the luminescence unit 12 of the second luminous zone AA2.
Specifically, including light source assembly 10 in backlight module provided in this embodiment, light source assembly 10 includes substrate 11, base
Plate 11 is for carrying multiple luminescence units 12, it is to be appreciated that because luminescence unit 12 also needs and print electricity in backlight module
The connection of the structures such as road plate (Print Circuit Bord, abbreviation PCB) could be powered, and printing can also be arranged on the substrate 11
The structures such as circuit.Luminescence unit 12 can shine after receiving suitable voltage signal.Tool of the present embodiment for luminescence unit 12
Body structure is not particularly limited.
The region that luminescence unit 12 is provided in backlight module is luminous zone AA, and the central area of luminous zone AA is the first hair
The fringe region of light area AA1, luminous zone AA are the second luminous zone AA2, and the width of the second luminous zone AA2 does not limit specifically, can root
It goes to set according to actual conditions.
Backlight module provided in this embodiment further includes quantum dot film 20, is located at luminescence unit 12 in the first luminous zone AA1
The light of sending projects after encapsulated layer 13 and quantum dot film 20 from the first luminous zone AA1, is located in the first luminous zone AA1 and shines
The light that unit 12 issues is converted into white light by the processing of quantum dot film 20.It illustratively, include that crystal grain is straight in quantum dot film 20
The sub- point of the different two amounts of diameter, when luminescence unit 12 issues blue light, blue light excites both quantum dots to generate feux rouges and green light, this
At white light after two kinds of light and blue light；Certainly, in some other embodiment of the invention, luminescence unit issues other colors
Light when, be equipped with other crystal grain diameters quantum dot quantum dot film collective effect make backlight module project white light, this hair
It is bright to this without specifically limiting.
The light issued positioned at luminescence unit 12 in the second luminous zone AA2 is after fluorescence coating 14 and quantum dot film 20 from second
Luminous zone AA2 project, fluorescence coating 14 to be located at the second luminous zone AA2 in luminescence unit 12 issue light carry out processing be converted into it is white
Luminescence unit can not be issued light and be turned by light when the part quantum dot film for being located at the second luminous zone is contacted with moisture and oxygen
When change, so that the light that the second luminous zone AA2 is issued in backlight module is white light, so as to improve the week of backlight module in the prior art
The phenomenon that border region is turned blue is conducive to the display effect for improving display device.
Fig. 3 is the schematic diagram of the section structure of another backlight module provided by the invention, and with reference to Fig. 3, light source assembly 10 is also
Including being set to light guide plate 15 of the encapsulated layer 13 far from 11 side of substrate.After the light that luminescence unit 12 issues enters light guide plate 15,
The light that luminescence unit 12 issues is evenly dispersed in the luminous zone AA of backlight module by light guide plate 15.It should be noted that back
Whether light guide plate, which is arranged, in optical mode group to determine that the present embodiment is not intended to limit in backlight module and is equipped with according to the demand of actual production
Light guide plate.
Backlight module provided in this embodiment in production, fluorescence coating 14 and encapsulated layer 13 can same layer setting, can directly exist
The light that luminescence unit 12 issues is adjusted the light in the second luminous zone AA2 before entering quantum dot film 20, without in backlight
Light modulation structure is arranged in other film layers of mould group, effectively reduces the thickness of backlight module.
Continue to refer to figure 1 and Fig. 2, optionally, wherein fluorescence coating 14 include the first transparent base 141 and incorporation first thoroughly
Fluorescent powder in bright matrix 141.
Specifically, by the second luminous zone AA2 luminescence unit 12 far from substrate 11 side be arranged doped with fluorescence
First transparent base 141 of powder, fluorescence coating 14 can convert white light for the light that luminescence unit 12 issues.First thoroughly in fluorescence coating 14
The material of bright matrix 141 is the higher material of light transmission rate, avoids the light for influencing luminescence unit 12.Illustratively, it shines single
When member 12 issues blue light, fluorescence coating 14 includes the yellow fluorescence in the first transparent base 141 of the first transparent base 141 and incorporation
Powder, luminescence unit 12 and 14 collective effect of fluorescence coating make the second luminous zone AA2 in backlight module project white light；Certainly, in this hair
In bright some other embodiment, when luminescence unit 12 issues the light of other colors, and doped with other color fluorescence powder
14 collective effect of fluorescence coating makes backlight module project white light, and the present invention is to this without specifically limiting.
Fig. 4 is the schematic diagram of the section structure of another backlight module provided by the invention, with reference to Fig. 4, optionally, wherein
Along the direction close to the first luminous zone AA1, concentration of the fluorescent powder in the first transparent base 141 is gradually reduced.
Specifically, fail since the part that quantum dot film 20 is located at the second luminous zone AA2 is easily contacted with moisture and oxygen,
And then it influences it and converts the sending light of luminescence unit 12, and itself and the first luminous zone AA1 remoter partial failure are more serious.
Fluorescence coating 14 and the first luminous zone AA1 are closer, then concentration of the fluorescent powder in the first transparent base 141 is smaller in the region,
Thus in the part that light source assembly 10 is located at the second luminous zone AA2, closer to the region of the first luminous zone AA1, luminescence unit
The amount that 12 sending light are converted into white light is fewer, sends out the second viewing area AA2 in backlight module
White light out is more uniform, and then improves the luminescent properties of backlight module, promotes the visual experience of user.
It should be noted that only with the concentration of the density degree signal fluorescent powder of the filling pattern of fluorescence coating 14 in Fig. 4.It can
With understanding, along close to the direction of the first luminous zone AA1, the concentration of fluorescent powder can for linear change and also be in
Change of gradient, the present embodiment are not specifically limited this.
With continued reference to Fig. 4, optionally, wherein the first transparent base 141 is identical with the material of encapsulated layer 13.
Specifically, the first transparent base 141 and encapsulated layer 13 can be packaged protection to luminescence unit 12, reduce external
Contact of the moisture with oxygen to luminescence unit 12, avoid external moisture and oxygen from damaging luminescence unit 12.Example
Property, the material of the first transparent base 141 and encapsulated layer 13 can be organic packages glue.Certainly, in other embodiments of the invention
In, the first transparent base 141 and encapsulated layer 13 can also be made of other materials, be protected to luminescence unit 12, this hair
It is bright to this without specifically limiting.It should be noted that in other embodiments of the present invention, the first transparent base 141 and encapsulation
The material of layer 13 can not be identical, and the material of the first transparent base 141 need to only meet the first transparent base formed by the material
Body 141 can be packaged protection to luminescence unit 12.
Fig. 5 a is the schematic diagram of the section structure of another backlight module provided by the invention, with reference to Fig. 5 a, optionally,
In, fluorescence coating 14 includes the second transparent base 142 and the fluorescent powder between luminescence unit 12 and the second transparent base 142
Layer 143, light emission side of the covering of phosphor powder layer 143 positioned at the luminescence unit 12 of the second luminous zone AA2.
Specifically, fluorescent powder is arranged by the light emission side of the luminescence unit 12 in the second luminous zone AA2 with continued reference to Fig. 5 a
Layer 143, phosphor powder layer 143 can convert white light for the light that luminescence unit 12 issues.It illustratively, can be by being located at the second hair
The light emission side coating yellow fluorescent powder of the luminescence unit 12 of light area AA2 forms phosphor powder layer 143, and luminescence unit 12 issues blue light
When, luminescence unit 12 and 143 collective effect of phosphor powder layer make the second luminous zone AA2 in backlight module project white light.
When phosphor powder layer 143 is arranged in the light emission side of the luminescence unit 12 positioned at the second luminous zone AA2, phosphor powder layer 143
The brightness of luminescence unit 12 may be caused to decay.The light that luminescence unit 12 issues in the second luminous zone AA2 passes through
Brightness after being provided with the fluorescence coating 14 of phosphor powder layer 143 passes through encapsulated layer with luminescence unit 12 in the first luminous zone AA1 is located at
It when brightness difference after 13 is larger, can be designed by route, so that luminescence unit 12 and first shines in the second luminous zone AA2
Luminescence unit 12 separately regulates and controls in area AA1, so that the light emission luminance of luminescence unit 12 shines greater than first in the second luminous zone AA2
The light emission luminance of luminescence unit 12 in area AA1, so as to improve phosphor powder layer 143 to luminescence unit in the second luminous zone AA2
The influence of 12 light emission luminance.
Fig. 5 b is the schematic diagram of the section structure of another backlight module provided by the invention, with reference to Fig. 5 b, optionally, is located at
Luminescence unit 12a in first luminous zone AA1 include spill cup body 121, set on spill cup body 121 bottom portion of groove luminous core
The third transparent substrates 123 of piece 122 and covering luminescence chip 122.Luminescence unit 12b in the second luminous zone AA2 includes
The luminescence chip 122 of spill cup body 121 and the bottom portion of groove set on spill cup body 121, phosphor powder layer 143 form and are covered in hair
On luminescence chip 122 in light unit 12b.It certainly, can also be by other means in some other embodiment of the invention
Phosphor powder layer 143 is arranged in the light emission side of luminescence unit 12b in the second luminous zone AA2, and the present invention does not repeat this one by one.
With continued reference to Fig. 5 a, optionally, wherein the second transparent base 142 is identical with the material of encapsulated layer 13.
Specifically, after the light emission side of the luminescence unit 12 positioned at the second luminous zone AA2 forms phosphor powder layer 143, to hair
The light emission side of the luminescence unit 12 of light area AA is coated with to form the second transparent base 142 and encapsulated layer 13,142 He of the second transparent base
Encapsulated layer 13 can be packaged protection to luminescence unit 12, reduce contact of the external moisture with oxygen to luminescence unit 12,
External moisture and oxygen is avoided to damage luminescence unit 12.And second transparent base 142 and encapsulated layer 13 can use
Technique is made with along with, effectively reduces the manufacturing process of backlight module, lowers the production cost of backlight module.
It continues to refer to figure 1 and Fig. 2, optionally, wherein on the direction that luminous zone AA is directed toward non-light-emitting area NA, fluorescence coating
14 width is 2-3mm.
Specifically, using the direction of luminous zone AA direction non-light-emitting area NA as first direction X, in a first direction on X, fluorescence coating
14 width is d, and the range (namely width range of the second luminous zone AA2) of the width d of fluorescence coating 14 can root in backlight module
It is flexibly set according to the range in the region easily failed in quantum dot film 20 in backlight module.The present embodiment is illustratively shown
2mm≤d≤3mm, the range are the solution backlight module peripheries that applicant obtains on the basis of conducting in-depth research
The preferable width range for the phenomenon that turning blue.When d be less than 2mm when, fluorescence coating 14 cannot be completely covered in quantum dot film 20
The corresponding all luminescence units 12 in vulnerable region, so that backlight module periphery will appear the phenomenon that part is turned blue.When d is big
When 3mm, the setting range of fluorescence coating 14 is larger, increases the production cost of backlight module；And fluorescence coating 14 is to luminescence unit
The brightness of 12 light issued is likely to result in part decaying, and the setting range of fluorescence coating 14 is bigger, corresponding luminescence unit 12
It is more, to need to be turned up the luminescence unit more than 12 of light emission luminance in backlight module, increase the energy consumption of backlight module.
It continues to refer to figure 1 and Fig. 2, optionally, wherein surface and encapsulated layer of the fluorescence coating 14 far from 12 side of luminescence unit
The surface of 13 sides far from luminescence unit 12 is in the same plane.
Specifically, surface and encapsulated layer 13 side far from luminescence unit 12 of the fluorescence coating 14 far from 12 side of luminescence unit
Surface formed a flatter plane, and on this plane be arranged quantum dot film 20, effectively avoid fluorescence coating 14 and encapsulation
The phenomenon that causing quantum dot film 20 to be damaged when being under pressure there are segment difference between layer 13.
It continues to refer to figure 1 and Fig. 2, optionally, wherein luminescence unit 12 is micro-led.
Micro-led (Micro LED) is LED of the crystallite dimension about between 1-10 microns, can be realized 0.05
Millimeter or smaller szie pixel particle display screen, the power consumption of Micro LED is very low, and have preferable stability of material and
And askiatic remains.
It should be noted that in other embodiments of the present invention, luminescence unit 12 can also shine for LED or secondary millimeter
Diode (Mini-LED), the present invention is not limited this.Wherein, Mini-LED refer to crystallite dimension about at 100 microns extremely
LED between 1000 microns.
Fig. 6 is the schematic diagram of the section structure of another backlight module provided by the invention, with reference to Fig. 6, optionally, backlight mould
Group further includes glue iron frame 30, the lower brightness enhancement film 40 for being set in turn in side of the quantum dot film 20 far from substrate 11, upper brightness enhancement film
50 and polaroid 60；
Glue iron frame 30 includes a bottom surface 31 and at least two sides 32 being connected with bottom surface 31, bottom surface 31 and side
32 form accommodating space 33；
Light source assembly 10, quantum dot film 20, lower brightness enhancement film 40, upper brightness enhancement film 50 and polaroid 60 are all set in glue iron frame
In 30 accommodating space 33.
Specifically, backlight module can also include lower brightness enhancement film 40 and upper brightness enhancement film 50, lower brightness enhancement film with continued reference to Fig. 6
40 and upper brightness enhancement film 50 can be located at side of the quantum dot film 20 far from substrate 11, lower brightness enhancement film 40 and upper brightness enhancement film 50 can be with
For prismatic lens, there is micro-prism structure on prismatic lens surface, and the light that luminescence unit 12 is emitted passes through prismatic lens, and micro-prism structure is to light
Line is scattered, in addition the ringing of back light source system, finally makes light converge in positive apparent direction outgoing, to reach increasing
Bright effect.
Backlight module can also include brightness enhancement film 60, be equipped with polarisation in the display panel being oppositely arranged with backlight module
Piece, the light that polaroid issues luminescence unit 12 are polarized, so that the light that luminescence unit 12 issues is with certain polarization
Direction exposes in display panel, partially due to polarization state is different and cannot appear polarisation in the light that luminescence unit 12 issues
Piece, in this part light back into backlight mould group, this part light can be reflected back in display panel by brightness enhancement film 60, improved and shone
The utilization rate for the light that unit 12 issues, to achieve the effect that blast.
Backlight module further includes glue iron frame 30, and bottom surface 31 and side 32 form accommodating space 33, light in glue iron frame 30
Source component 10, quantum dot film 20, lower brightness enhancement film 40, upper brightness enhancement film 50 and brightness enhancement film 60 are all set in the appearance of glue iron frame 30
In 33 between emptying.
It should be noted that can also include other some well known structures in backlight module, in order not to obscure this Shen
Emphasis please will no longer be further described structure well known to these.
The embodiment of the present invention provides a kind of display device, including backlight module and the display surface being oppositely arranged with backlight module
Plate, wherein backlight module is backlight module provided by the invention.
Fig. 7 and Fig. 8 are please referred to, Fig. 7 is a kind of planar structure schematic diagram of display device provided by the invention, and Fig. 8 is Fig. 7
The schematic diagram of the section structure of the middle display device along B-B '.Display device 1000 includes backlight module 100 and display panel 200.Its
In, backlight module 100 is the backlight module that any of the above-described embodiment of the present invention provides；Display panel 200 can be liquid crystal display
Panel is arranged between array substrate 210 and color membrane substrates 230 including the array substrate 210 being oppositely arranged and color membrane substrates 230
There is liquid crystal layer 220.
Fig. 7 and Fig. 8 only take the mobile phone as an example, and are illustrated to display device 1000, it is to be understood that the embodiment of the present invention
The display device of offer can be other display devices having a display function such as computer, TV, display device for mounting on vehicle, this hair
It is bright that this is not specifically limited.Display device provided in an embodiment of the present invention has backlight module provided in an embodiment of the present invention
Beneficial effect, can specifically refer to the various embodiments described above illustrating for backlight module, the present embodiment is no longer superfluous herein
It states.
Fig. 9 is the schematic diagram of the section structure of another display device provided by the invention, with reference to Fig. 9, optionally, display dress
Setting further includes shading glue 300 between backlight module 100 and display panel 200, and shading glue 300 is located at non-light-emitting area NA.
Specifically, display device further includes the shading glue 300 positioned at non-light-emitting area NA, shading glue 300 with continued reference to Fig. 9
It can be black double-sided adhesive tape, the leakage problem of non-light-emitting area NA in display device can be effectively reduced, and steam can be reduced
Or the risk inside foreign matter entry of backlight mould group 100.
Through the foregoing embodiment it is found that backlight module provided by the invention and display device, at least realizing following has
Beneficial effect:
Backlight module includes light source assembly and quantum dot film, and light source assembly includes multiple luminescence units, is located at first and shines
The light that luminescence unit issues in area projects after encapsulated layer and quantum dot film from the first luminous zone, sends out in the first luminous zone
The light that light unit issues is converted into white light by the processing of quantum dot film.The light warp that luminescence unit issues in the second luminous zone
It is projected after crossing fluorescence coating and quantum dot film from the second luminous zone, fluorescence coating is to the light for being located at luminescence unit sending in the second luminous zone
It carries out processing and is converted into white light, when the part quantum dot film for being located at the second luminous zone is contacted with moisture and oxygen and can not will shine
When unit sending light is converted, so that the light that the second luminous zone issues in backlight module is white light, so as to improve existing skill
The phenomenon that backlight module neighboring area is turned blue in art is conducive to the display effect for improving display device.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (12)
1. a kind of backlight module characterized by comprising the quantum dot of light source assembly and the light emission side positioned at the light source assembly
Film；
The backlight module has luminous zone and around the non-light-emitting area of the luminous zone, and the luminous zone includes the first luminous zone
With the second luminous zone for surrounding first luminous zone；
The light source assembly includes substrate, multiple luminescence units on the substrate, the envelope positioned at first luminous zone
Layer and the fluorescence coating positioned at second luminous zone are filled, the encapsulated layer covering is located at the luminescence unit of first luminous zone,
The fluorescence coating covering is located at the luminescence unit of second luminous zone.
2. backlight module according to claim 1, which is characterized in that
The fluorescence coating includes the fluorescent powder in the first transparent base and incorporation first transparent base.
3. backlight module according to claim 2, which is characterized in that
Along the direction close to first luminous zone, concentration of the fluorescent powder in first transparent base is gradually reduced.
4. backlight module according to claim 2, which is characterized in that
First transparent base is identical with the material of the encapsulated layer.
5. backlight module according to claim 1, which is characterized in that
The fluorescence coating includes the second transparent base and the fluorescence between the luminescence unit and second transparent base
Bisque, the phosphor powder layer covering are located at the light emission side of the luminescence unit of second luminous zone.
6. backlight module according to claim 5, which is characterized in that
Second transparent base is identical with the material of the encapsulated layer.
7. backlight module according to claim 1, which is characterized in that
On the direction that the non-light-emitting area is directed toward in the luminous zone, the width of the fluorescence coating is 2-3mm.
8. backlight module according to claim 1, which is characterized in that the fluorescence coating is far from the luminescence unit side
The surface of the side of surface and the encapsulated layer far from the luminescence unit is in the same plane.
9. backlight module according to claim 1, which is characterized in that
The luminescence unit is micro-led.
10. backlight module according to claim 9, which is characterized in that the backlight module further includes glue iron frame, successively
It is set to lower brightness enhancement film, upper brightness enhancement film and the brightness enhancement film of the side of the quantum dot film far from the substrate；
The glue iron frame includes a bottom surface and at least two sides that are connected with the bottom surface, the bottom surface and the side
Face forms accommodating space；
The light source assembly, the quantum dot film, the lower brightness enhancement film, the upper brightness enhancement film and the brightness enhancement film are respectively provided with
In in the accommodating space of the glue iron frame.
11. a kind of display device, which is characterized in that including backlight module and the display surface being oppositely arranged with the backlight module
Plate, wherein the backlight module is backlight module of any of claims 1-10.
12. display device according to claim 11, which is characterized in that the display device further includes being located at backlight module
Shading glue between the display panel, the shading glue are located at non-light-emitting area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811550498.3A CN109343278A (en) | 2018-12-18 | 2018-12-18 | Backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811550498.3A CN109343278A (en) | 2018-12-18 | 2018-12-18 | Backlight module and display device |
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| CN109343278A true CN109343278A (en) | 2019-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811550498.3A Pending CN109343278A (en) | 2018-12-18 | 2018-12-18 | Backlight module and display device |
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| CN113759590A (en) * | 2021-10-13 | 2021-12-07 | 厦门天马微电子有限公司 | Backlight and display device |
| CN113970860A (en) * | 2021-09-28 | 2022-01-25 | 联想(北京)有限公司 | Backlight module and display device |
| CN115377273A (en) * | 2022-06-23 | 2022-11-22 | 厦门天马微电子有限公司 | Light-emitting panel, display device and backlight module |
| TWI785859B (en) * | 2021-10-25 | 2022-12-01 | 瑞儀光電股份有限公司 | Backlight module and display device |
| CN115917419A (en) * | 2021-06-25 | 2023-04-04 | 京东方科技集团股份有限公司 | Backlight module and display device |
| TWI828141B (en) * | 2022-05-09 | 2024-01-01 | 友達光電股份有限公司 | Display device |
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